/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.tinkerpop.gremlin.structure.util;

import java.util.Iterator;

/**
 * A default implementation of {@link CloseableIterator} that simply wraps an existing {@code Iterator}. This
 * implementation has a "do nothing" implementation of {@link #close()}.
 *
 * @author Stephen Mallette (http://stephen.genoprime.com)
 */
public class DefaultCloseableIterator<T> implements CloseableIterator<T> {
    protected Iterator<T> iterator;

    public DefaultCloseableIterator(final Iterator<T> iterator) {
        this.iterator = iterator;
    }

    @Override
    public boolean hasNext() {
        return iterator.hasNext();
    }

    @Override
    public T next() {
        return iterator.next();
    }

    @Override
    public void close() {
        CloseableIterator.closeIterator(iterator);
    }
}
